Severe thunderstorms rolled through portions of the Tucson Metro resulting in strong winds and localized hail.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS TWC wrote it up.
Severe thunderstorms rolled through portions of the Tucson Metro resulting in strong winds and localized hail.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Tucson, AZ wrote its last area forecast discussion before the first event at Aug 23, 1:15 PM MST, 2 hours 33 minutes earlier.
Area Forecast Discussion National Weather Service Tucson AZ 115 PM MST Fri Aug 23 2024 .SYNOPSIS... Daily chances for thunderstorms continue. Localized flash flooding, strong winds, and small hail will be possible with any thunderstorm over the coming days. High temperatures are expected to remain near normal. && .DISCUSSION... Amid relatively active southerly to southwesterly flow aloft, thunderstorm activity is expected to expand this afternoon across much of southeastern Arizona. A Pacific northwest trough has brought some dry air aloft in from the west, which has trimmed up precipitation chances today over western Pima, with best chances mainly near and east of Tucson-Nogales. Increased shear due to the proximity of the Pacific trough will allow for a few thunderstorms to produce potentially severe hail, along with heavy rainfall rates despite the modest decrease in atmospheric moisture aloft. Downdraft CAPE isn't terribly high, though the increased shear should allow for an isolated severe wind threat. Finally, storm motions should preclude a more widespread flash flooding threat, however storm mergers or storms over locations vulnerable to flooding will still provide a flash flooding threat. Tomorrow, as the PNW trough moves inland towards the Great Basin, divergence aloft over southeastern Arizona increases under the right exit region of an ejecting jet streak. This added ascent may act to increase thunderstorm coverage in a case where today's activity would otherwise bring a "down" day. Either way, chances remain but will still partly depend on how widespread today's activity becomes. Sunday remains under a similar synoptic pattern and will see thunderstorm chances in the afternoon and evening as well. Highest chances generally remain east of Tucson-Nogales. Daily monsoon activity will continue with some day to day variation through next week. Though ensemble mean precipitable water and CAPE guidance shows potentially some drying early next week (especially from the ECMWF members), there remains enough moisture and background support to continue daily forecast chances. && .AVIATION... Scattered thunderstorms this afternoon through 24/03Z, with isolated late this evening, mainly near and east of KTUS-KOLS. Outside of thunderstorm wind gusts, winds generally 15 kts or less with a south to southwest direction. Scattered thunderstorms again Saturday afternoon. Aviation discussion not updated for TAF amendments. && .FIRE WEATHER... Scattered thunderstorms this afternoon and evening, mainly near and east of Tucson to Nogales as drier air nudges in from the west. Scattered thunderstorms are forecast again each day through the weekend. High temperatures remain near normal. The drier air pushing in will act in lowering minimum relative humidities to around 18-28 percent through the weekend, though areas east of Tucson to Nogales should keep higher values. Outside of any thunderstorm outflow winds, 20- foot winds will generally be 15 mph or less, with afternoon/early evening gusts to 20-25 mph and light winds overnight. && .TWC WATCHES/WARNINGS/ADVISORIES... None. && Public...Edwards Aviation...Edwards Fire Weather....Edwards Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
Preliminary Local Storm Report
National Weather Service Tucson AZ
339 PM MST Fri Aug 23 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0329 PM Rain 1 SW Oracle 32.61N 110.80W
08/23/2024 M0.50 Inch Pinal AZ Trained Spotter
Amount fell in 18 minutes.
&&
LJTPreliminary Local Storm Report
National Weather Service Tucson AZ
342 PM MST Fri Aug 23 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0338 PM Hail 11 W Huachuca City 31.66N 110.53W
08/23/2024 M0.88 Inch Santa Cruz AZ Trained Spotter
&&
LJTThe Tucson radar (KEMX), 62 km away, was scanning. The volume nearest the first event began at 22:47 UTC.
2 flash flood, 1 thunderstorm wind, 1 hail. Local standard time, as filed.
Reports of fence damaged along with numerous large tree branches.
A trained spotter reported 1 inch diameter hail.
Considerable water running along low water crossing on N. Thornydale Rd. just south of W. Hardy Rd.
Considerable water running along low water crossing on N. Thornydale Rd. just south of W. Hardy Rd.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2024Every state in 2024This day in weather historyWarnings in Arizona, August 2024
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1211557, 1211555, 1211558, 1211559.